Sewing-machine



A. H` DE VUE,

ORNAMENTAL STITCH .SEWING MACHINE.

23, 1920. @swims-sneu 2.

Patented Mur.

APPLICATION FILED SEPT. 9, 96.

y, eff

A. H. DE vos.

ORNAMENTAL STITCH SEWWG MACHINE.

APPucArloN min sir. s, 1926.

ari

WITNESS OMJQJM@ INVENTR A TTURNEY .Patented Mm'. 23, 1920.

MKM

A. H. DE VOE.

URNAMENTAL STITCH SEWING MACHINE.

APPLiCATlON HLED SEPT. 9, 195.

1,334,650. Patented Mar. 23, 1920.

Y [In 68 Wi TNESS.'

NVENTOR MWh/4m W ATTORNEY A A. H. DE VOE.

RNAMENTAL STITCH sEwmG moms.

Patented Mar. 23,1920.

' 6 SHEETS-SHEET 5- INVENTOR i, y BY 315,12* mw A. H. DE VUE.

ORNAMENT/IL STITCH SEWING MACHINE.

APPLICA'YIUN FILED SEPTA?, I9I6.

Patented Mau'. 23, 1920.

.WITNESS UNITED STATES PATENT OFFICE.

ALBERT H. DE VUE, 0F "Wliwzlil'ELI.)` NEW JERSEY. ASSIGNOR T0 THE SINGERMANU- FILETURING .f2t')'MPANY. A CRPORATION OF NEW JERSEY.

RNAMENI'AIRSTAL' CH SEWING-MACHINE Specification ot Letters Patent.

Jatentel Mar. 23, 1920.

Application .filed September 9, 191B. Serial No` 119,211.

lo au wlw/n, 'it moy einem Be it known that l, nninz'r H. D11 Von, aeitimu of the United .gitane-s, residing` at lVoStlield` in the countyoi linien] :unl State, of Non Jersey, here invented rertnin uen andneeliul iniprovouiulitn in Urminuntal- Stitch Sewindlliarhinwt ol whirl)the loll lowingi:-. a. lomeilivntflon. ri-l'erenw lwlug; had therein tothe nei-oiupnnyiug' dran'inn This invention rit-huw lo improvement iuorlnunentul lelitch wwlng maehinre` and eu perially to nnxehilnfs havingstirelnforming mechanism eoniprising one or more needles andconipleluentnl loopntalting nunon;` und threzul-lmndling meehaniwm forthe orua` mental thread iueludingiP one or nuire threadA loopingimplements or loopers mounted for univoral movement transversely ol' theneedle or needles and adapted to present n thread or threads to theneedle or needles in the forn'lntion of variole; oruanieutul seamsdifferingl in ronfiguration'.

The present eonetrnetion is un improvement of the maehiie iflierlosedin. the patent to Griiiiths, No. 707.658. ot August-1U. llfll. in whicha .single threatHooliiug implement ie mounted on a carrier miuuuted hythe premier-har and adapted to move in traue verbe tlirrrtions. itsreepertire mover-witte` being prodnred hy independent connevtions withtivo rotary' rame: mounted or: tno nuxilinry shafts geared to the,noodle-:wmating shaft.

In the present improvement the use ot' Cams ie avoided enel a singleauxiliary Shaft sel-vee through link-and-lever connections.. to impartoperntive movement@l to one or more threadllooping iml'ilementn mountedfor universal movement transvereely of the needles, the object being toprovide a, high speed quiet running machine.

The invention ha` for another objet-t 'to provide mechanism lorprodlu'ing;r a rom-- posite Fain of the character dieeloeed in my'Patent` No. 1,20l,446, ot' (')ctober 17, 19H3.

nothf'r object ot the invention i the arrangen'lent of n pair ofthreadlooping 'uu-- 'pleinentsy one infront and one in rear ot' theneedles, and the provieion of means for moving said ii'nplements inunison laterally of the line of senin-formation and sunnita neouSlytoward or nwtiy from the pleno ot' the needles.

Another object of the' invention is the Provieion of n simplifiedthread-ornltrolling mechanism for the ornamental thread or threade,acting to accurately measure and I my out th read to the looper orloopers for the and vnreventing distortion of the loops pre vionely laidby the looper or loopers about the needle or needles. Suchthread-controlling mechanism is partieularly (.leeiruhlo :hiringn theformation ot ornamental seams when eertnin of the needle-threads areomitted from the machine, as will hereinafter more fully appear.

in the present construction the loopers are supported by a preSsenbnr,as in the Grlliiths nmehine, and another object of the invention theprovision of means for locking the main-shaft against rotation when thepreesenlinr is lifted and the prevention of upward movement of thepresser-bar except when the loopers are in n' predeter mined position,to prevent possible damage to the needles or loopers.

Further objects ot' the invention will appear from the followingdescription and claims.

ln the preferred embodiment of the invention. a mnchine is utilizedwhich is adapted to nuiltefour parallel rows of ;in; li-rlmin stitchesand comprises the usuel Hat hed-platiand overhanging bracket-armterminating in a head in which the needle and presner-har are journaled.An auxiliar)v shaft. extends erosswise of 4and is` reared to theneedle-driving shaft and car rien two crank members which Serve,reepeetirelv. through link and lever conne.qtionxA to impart.n'iovemenls to a rocking frame and '.1 tbellemnk-lever filler-tuned inmid rot-king' frame 'for movement therewith. The Connections nhovementioned include a tog-ole device. adnpted to Cause oscillations ot'the` lwllrrauk-lerer about its i'uleruul at douhle the frequency ofoscillation of smid melting frame.

Two looper` are supported respectively in front and in rear of theneedles h v two looperlevers pivotally mounted on n enrrier whirh u:pivoted to a support Carried by the,

presseiuhaix thns adapting the loopers for universal movementtransversely of the needles. The bellcrank-lever above de- Seriherl isconnected to impart its compound movements to said loopers, whereby eaehlooper ie caused to loop its thread about each of two adjacent needlepaths alternately.

porpora@ of controlling the configuration The thread controllingmechanism for the `ornamental threads comprises a thread nipper 'and asingle implement rigidly 'se cured to the needle-bar and havin a portion adapted to :tctuate the three and "another portion to pull threadfrom the suppl y.. An adjustable thread guide is provided to vary theetl'eetive action of the pull-oil' implement.

In the accompanyini1 drawings, Figure 1 is a firent elevation of t emachine, partly in section. Fig. 1 is a top plan view of theneedle-thread controlling device shownin Fig. 1. l1` r. 2 is an endelevation of the machine. "ig, 3 is a rear elevation of the machine-headand parts contiguous thereto. Fig. /1- is a sectional view taken on theline 3MB, Vig. 3. Fig. 5 is a perspective view of ing 'frame andbellorank-lever which impart compound movements to the loopers. Fig. 6is a pers eetive view of the crankearrying end of t e .auxiliary orlooper actu-` ating shaft. Fig. 7 is a fragmentaryr view of the machinehead, showing the mechaniein forI locking the main-shaft, p Fig. R is,

an elevation of the lower part of the muehine head lookingr toward theright in Fig. 3. Fig. E) is a partially disasxiemliled per spootive viewof the `looper-'oa'rrier mid looper-levers`. Fig. 10 is n` to'p' planview ol the preeeer--foot Fig 11 is a.bottoin plan view of the same.Figs. 12 to i5 inclusive are plan views illustrating the four succesdsire positions assumed by the looperlhread tubes relatiire to theneedles durin f e oom'- ple-te cycle (if movement. Fig. 16 i lustratesthe four needles cooperating Vwith three rearwardly disposed looperlubesto form the .so-culled figure 8 stitches. Fig. I7 illustrates the fouf'needles coperatie with three forwardly disposed louper-tu es to forni anornailaenlnl seam having a. characteristif epl'ieali'unee differing fromthat shown in. Fig'. 16. Fig. 18 illustrates the four needlesrfoperatin,eh with one rear waidly disposed looper tube and two or-Wairdly f lisposlfd loolper-tu-bes to forni a seam differing from thoseshown in Figs. 15? 16 and 17. Figi, 19 is a plan View on an enlargerlsmile `he seam illustrated in Figs. 1.2 to 'l5 inrh:` illuslrafe a few ciaracterietir types of ornamental seams produced by the machine.

The improvements; are shown embodied in a mar-hin( liavingm bedphlte A.standard B, hollow overhanglng' 'arm (l and head D. Extending within andlengthwise of the arm (f is the uminzhaft 1 provided et one end with'lhehand-wheel 2 und grnoved beltpnllev. and at its opposite end carryingthe eralulodisk 4, the latter being operatively connected with thenriefllebar by means of the ranlrrpin (l and pitlnan 7. ln the pres entinetancethe needle-bar has xed ,thereon at its lower end' the clniup forthefour flipper Figs. if() to il() inclusive i needles u', n2, n", u, whirh are arranged 1n a` plane transverse to the line ofi seamtormulionand which :re adapted to coopV @rate with any desired form ofComplemental `loop-taking means :auch as single ehnin loopere, one ofwhich is shown at o, Fig. 2.

Mounted in the head D, parallel with the needle-har, is a presser-bar 9of usual construction, to the lower end oil which is cl mped the shank10 of a presser-foot p,

2, l0 and 11. The lower enlarged end of the Shank l() is formed withspaced rearwardly extending ears 11, which support the pivot-pin 12 onwhich are fnlcrunied for independent movement the three supportinglevers 13, 13 end 14, et the forward tree ends ol' which are pivotallymounted the main sole-portions or feet 15, 1:1 and the chaining foot 16,respectively. Springel 17 are provided to yieldipgly press the leverslil` 13 and ll toward the lied-plate, and snows 15's threaded into saidlovers and looeely fitted in recesses in lhe enlarged lower end ol' theshank 10 arrA provided to liinitV Hl@ (lmvnward movement of said leversrelative to the shank 1U, Arting in ronjnnetion n ilh the e wings 17 lofoire the levers i3, l'l downwardly, are the springs 19, the pressure ofwhich may lieregulatrd by the thumlrnnts 2() on the threaded rodspivoially connected at 22 to the pl'es-:ei-foot Shank 10. The presserbarl) is pressed downwardly hy means of the usual spring 23, Fig. 7, andmay be liited by the handlever 24 or the treadle-oontrolled lever Q5,eech of which is arranged to act on the npwerdly and outwardly benl'liar QG projectving' laterally from The collar fixed to the presser-liar9.

,ln the present instaure the ornamental thread is presented lo theneedles` by thread- Carrying loopers mounted on the presser-liar foruniversal n'iovement luier-alliv of the needles. Fixed to thepresser-har 9, Fig 4, just below the collar Q'Zus the support for thelooprrs in the form of a block 28 carrying the rearwardly projettiligpin 29 snrronnded hv the tubular boss 30 formed inte- `fral with therarrier plate 31, which is lis posi-d dirrri'ly :it the left iside ofthe needl(L har Fig. 1. Referring now to Fig. 9, the rarrier pluto 31lis provided with tw pai-rah le] pins` WZ, 33 which-extend pretrial-ilyin e. direction ai right angles to the axis .ofthe tubular hoes 30 andform fuleruin supports for the downwardly.extending loo}ie1levers 3l,35. rrsperlit'elyq Split collars 36 are provided to hold thelooper-levers in posi-A tion on thi-ir fulerum' pins. The looperl.`lever 34 includes an extension B'whieh crosses the line ofsonnrformetion in `rear f the needles and is slotted at 38 to form a'seal for the shank of the louper 39 whose lower free end carries twothread tubes 40? @tu ii hivh projvvt forwardl)v toward thty planv Ot thvnvvellv. 'l`hv loopvrlv\'vr 255' is providvd with a rvvvvs 41. Fig. L)yforming a svat for thv loopvr 4'.: whit-h vXtvndS downA wal'dly in frontof thv nvvdlvs,` and vartivs at its` frvv vnd a thrvafl-t|ihv 13dirovtvd toward thv planv of thv nvvdlw: The rvalwardly dispovvdtlnvadtnhvs: 1U, t0 arv pavvd apart :1 diistnnrfv vqiial to twivv thedistant-v hvtwvvn adjacent nvvdlv` and thv forwardly diapoavdthrvad-tiihv 13 is so positioned that its rvv vnd ia dirvt'tvll toward aposition midwa)v hvtwvvn thv.thrvadttlhvs 4U. Y1U as lQhown in Figa 12to 15 invhlsii'v. (h'. in othvr words. thv thrvad-tiihvs are a3'-i'angvd altvriiatvlv on oppositie sillas of thv row ot' nvvdlv` insilavvd rvlation t1anS- Yvrvvlli' of thv linv of svanl formation.

lt will hv iwevn that Inoivmvot otl thv varrivr-i latv 51 ahoeit thvsupporting pin 2U will vriiisv thv lfmpvr-lvvvrs to Inovv in imi- `onlatvlally of thv linv of avanaformation 'l`o vaitv tho loolwr-lvi'vra`to movv simultanvollsly toward or awa)v trom thv planv ot' thv nvvdlvsan intvrmvdiatv lvvvr -l-l proiidvd. Thi lvvvr is pitotvd hvtwvvn it`vnd to thv varrivr platv hy a Hvrvw-pin -15 and uat'rivs at it.-`oppoaitv vnd thv oppoitvl)- dirvvtvd pim NL -I-t whit-h trvvly vntvrapvrtnrv torlntd in thv hvadvd pins al?. it? whic-h in turn arvionrnalvd in thv apvrtnrvd hmsvs ITS. ttt 'fornivd intvgral with thvloopvl-lvrvrsit! and T55 rvvhvvtivvii'.

Thv tl'nvatl-loogiingg iinplvmvnta or loopvlsA 3? and 12 rvvvivv thviroiivrativv niovvmvnts from a hvllvranklvrvr f1 whivh partaltvv of avooipoitod motion rv iitirig troni two di tinvt motions impartial to thvlivllvraiil\'-lv\'vr in traiimvrsv dirvi-tintin To this vnd thvloopvr-lvYvr 5H is protidvd with a whort dvpvndingV pin 5t! loosvl)`rvvviivd within the apvrtilrv 51 ot' thv adiilstahlv vlitlhvvtifm 451ot' thv hvllvranlvlvtvr til whit-h i fnlvrunivd at 5;' to a lovltiniff'i'amv .725 ioill'nalvd on a tvvvv 7.4, Figa. t and tt. whit-h in tarnis joiirnalvd on a pin 5T avrvwvd into thv hrarlivt 56 txvd to thv hvadI). Thv loopvrlvvvr :S5 is also providvd with a short d v pvmiingpin 54)whiifh is looavly rvvvivvd with thv vlongfatvd apvrt'irv T11 ot' thvvnd- Svvtion Yllt and asfahta in ltvvping thv loopvr 1; iai propvrposition rvlatitv to thv lonpvl' il? lativralllv of thv linv ofwamfin-mation.

Thv nier-ans for imparting' thv von'iponnd opviativv movvinvntis to thvhvllvrank--lvvvr 421 will now hv rlvsrrihvd. Svvurvd to thv Inainhat't 1is thv worm 5T mvshinggl with thv j fvar 5H mountvd on thv auxiliar)-shaft 59 whivh is joulnalvd transvvrsvly o" thv mainwzha'tt in a housingfit1 nioimtvd on top otl thv hravkvt-arm C. Thv auxiliarV shat't 5!) isprovidvfl with an outboard projvvtion t'ormvd with thv hall vranli-pina(il and 62 whosv Cvlitvrs arv arrangfvd in ditvrvot radial planesintvrsvcting thv axis ot thv,

auxiliar) Shaft To): thv angl'lv dvl'ilivd hy said planv living, in thvprvsvnt imtanvv. sonicwhat tvss than 9110.

f' Surrounding thv hall (frank-pin 111 is thv strapped vnd ot' thvpitlnan |33 whosv oppo-v site apvrtilrvd vnd vinhiavm a pin t adjoint--ab!)Y iooitnlvrl on thv dottvd crank-arm (371A whivh is tixvd to onv vndot' thv tilhnlal' sha't't 74, to tho oppositv vnd of which is vlainpvdthv #ptit vnd ot' an Hpstandiih;r vratilvarm 13 carrying a hall-stud twhivh ia vomlvvtvd hy thv lilik (1T to thv hall-stud (A molmtvd on thvhvnt vnd-portion 49 of thv hvllvranlt-lvvvl 19. Tho vranli-arm G5 andlink 11T voilstitlitv a togfgflv-dviivv whit-h imparts two vomplvtvovvillatioiih` to thv hvllCt'aI]l-lvVvr 1.11 tol' vavh vornplvtvoavilation ot' thv vranlvarln (i5, or in othvr worth. for vavh rotationof thv auxiliar)v shaft 359. Snvv thv main-shaft 1 rotatvs twivv forvat-h vrotation of tho auxiliary shaft it tollowv` that thv loopvrs 35,1and t2 a rv movvd toward and away from thv nvvdlva (mvv during' onvalii-and-dmvn mm'vnivnt ot' thv nvvrllvs.

Vpon thv hall vranh-pin 62 is tittvd thv vonnvvton lilovltr (it) fornlvdwith a slvvvv whivh sliflinglji ivvvivvs thv rvdiivvd iippvr vnd portionof thv lvvvlakm 71 whose lower vnd is rigid!)v `vvarvrl within thvapvrtlirvd hoss 71 toi-mod intvgg'ral with the rot-king' tramp alzi.Through this linv ot' vonnvvtions thv hvllvranlt-lvvvr L10 iso.-villatvi1l laterally of thv linv of VsvainFormation at halt thvfrvqnvnvi of ovvillation of said hvllvranklever ahont its; fnlcrum 52.

A Simplitivd mechanism is providvd for positivvly and avvii atvlyControlling thv amount of ornamvntal thlvad supplivd to thvV loopvra 3f)and 42. Fixvrl to thv nvvtllohar and projvvting through a Slot .s in thvtavv platv is a` hlorl 73. Fig. 1 to thv pre jvvting' vnd of whivh isvrvwvd thv vnlargrvd shank ot an upwardly vxtvodiirg thrvailvontrollingimplvmvnt 'F1 upon whivh iS moimtvtl a roller-stud T5 constituting apro` jvvtion adapt-vd to avtnatv thv nippvvlvwr 7G ii'hivh i tlilvrmnvdon thv pio 7T mm.. portvd h v spavvd lugs Tti forntvd on a projvvtioo T9tixvd to thv tavv platv f'. Hvvtirvd to thvr Hipgsvr-lvvvr t ]'iIatahovv thv fulvrmn-pin 7T is ao inwardly vxtvnding nip pvrrapviog t'mmvdwith 'thrvv thrad mit ping ttingfnvs; S1 whovv appvr vnd portiona` arteadaptvtl to nip thv ornamvnmtth'f'v'ads against a ixvd nippvr-platv 92providvd with iihrvv thivadfnidii'xgr apvrtulvvy S3 lovatvd ahovv thvfree ends of the tongues 81 of the nippvr spring 80. A small coil springSi is plovitlvd to move thv tongues S1 awaj,7 from the nippvrlplatv S2.Thv nippvllvi'vr 7G is formed with an inclined portion 85 which is sodisposed relative to thv rollvrH stud T5 that during the first partiofthv clown strohv ot thv nvvdlc-hal'. the rollvr-stutl T5 strikt-g2. saidinvlined portion 85 and calmes Slt tl1e l1i'eu d i@ he nipped jilsliwf'm'u the needles entmthv work. Tho` imiin-pul'timi V'guidingaperturas 9() disposed directly ho-4 hind the apertures 83. During thelast piu Iof the down stz'olm-ofihe needlwhaii thv thread ig Ripped andthe pull-Uff implement Strikes the ornamental thread extendinglhntweenthe ihrend-apxfm'es {il} and Hi? pullrf a pindii'm'imnml length nl ilu-vu? through the iwf-livin yliilrh :iw iwazrimi ha the bar S9. B5" sin ingli plais i?? 'viril cally thu pull' action of thu nnpmnwnl: T may bevaried to cause thu mumnmmzl threads to beim'orpmntd, either lffasnly nytightly, into the senin Structure.

Thefmachine is equipped with :i multiple needle-thl'ead controllingdevine alpinisti-d bj' the calm 91 mi the main-shaft 1. Thi cum fweccentric 91, ants to lift thu mllnr ik! iii-mim. to thv lmvw 0nd oi nottimi rmi .lz `iidnllly mounted in ih@ :lpel'tmvd puni 'lll fsm-Hiwl inthe frame. Tn the uppor wird if ih@ md .i isisecured cuxlhully nf itslvng'lh lkw hmi. :cimtzil ihm-:id frngugingf lam' W iil-wf-ai\ l;v .'iim; iurmd npmrldljs, f il? is pfs'wfi'hfl in maintain 13m flzilv.' lilin vandali with. 'ihn oetulm'icf :wmhf-i' 5H, ihn slwvblni-ltil lvfm'lwiEN mummia-d nu laying their espetivn. iili'uimlfs,r

Fig. lfl illnhii-:diir-` tho 'pwsii im Lhedising Howlin@ n?? Jim fabric,tho hriud-i` alla hzuii ed frmn the plano nl' lfllv :il-vd Slightly inClin rigidi. The" Wm'l i um a stitrh-lengh during whifh mmtlllwldilulw/S `nli'Rill-Jini im iis# lflili uw prnjecwd toward theplane if il wwv-.ilr Y 'passing luider thel then rfiA d muli: bo theposition Shown in iii needle poins :ma f1-gain elm L In this positionthe thrandiiiliiwcaught; by the nwdim 7i', Y dien n2, 91,4.y whileY theihm Y thread, about-thu ngi-,dln n i Vig i f ihn position (if the pas@in; uw '`f`f r Silhfserpiently leavin tim f he next fwdirlg Hiram: iwanm'efl i'mvuid iilieymilim for wfpiimi m" ha iii niii iw :imrai ni iwk'piil'm Limit i ALBERT H. DE' VUE.

